iPhone 5 has become the focus of the whole world since its release. It is reported that it over 3 million people have ordered it. There are top 5 reasons to upgrade to the new iPhone 5 in the air:(1) 4-inch retina LCD(2) LTE highp-speed network(3) Faster A6 processor (4) iOS 6(5) New form factor, slightly thinnerIf you have an iPhone 4S or an older apple phone, would you upgrade to the new phone 5? Why or why not?